package com.itheima.controller;

import com.alibaba.dubbo.config.annotation.Reference;
import com.itheima.constant.MessageConstant;
import com.itheima.entity.Result;
import com.itheima.service.MemberService;
import com.itheima.service.ReportService;
import com.itheima.service.SetmealService;
import com.itheima.utils.DateUtils;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileInputStream;
import java.math.BigDecimal;
import java.text.SimpleDateFormat;
import java.util.*;

/**
 * @author ：lintao
 * @date ：Created in 2020/12/4
 * @description ：统计报表
 * @version: 1.0
 */
@RestController
@RequestMapping("/report")
public class ReportController {
    @Reference
    private MemberService memberService;
    @Reference
    private SetmealService setmealService;
    @Reference
    private ReportService reportService;

    /**
     * 会员数量统计
     * @return
     */
    @RequestMapping("/getMemberReport")
    public Result getMemberReport(){
        Calendar calendar = Calendar.getInstance();
        calendar.add(Calendar.MONTH,-12);  // 获得当前日期之前的12个月的日期
        List<String> list = new ArrayList<>();
        for (int i = 0; i < 12; i++) {
            calendar.add(Calendar.MONTH,1);
            list.add(new SimpleDateFormat("yyyy.MM").format(calendar.getTime()));
        }
        Map<String,Object> map = new HashMap<>();
        map.put("months",list);

        List<Integer> memberCount = memberService.finMemberCountByMonth(list);
        map.put("memberCount",memberCount);

        return new Result(true, MessageConstant.GET_MEMBER_NUMBER_REPORT_SUCCESS,map);
    }
    @RequestMapping("/getMemberReport2")
    public Result getMemberReport2(String[] checkDate) throws Exception {
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(DateUtils.parseString2Date(checkDate[0]));
        List<String> list = new ArrayList<>();
        while (true){
            String date = new SimpleDateFormat("yyyy.MM").format(calendar.getTime());
            list.add(date);
            if (date.equals(new SimpleDateFormat("yyyy.MM").format(DateUtils.parseString2Date(checkDate[1])))){
                break;
            }
            calendar.add(Calendar.MONTH,1);
        }
        //System.out.println(list);
        //return null;
        Map<String,Object> map = new HashMap<>();
        map.put("months",list);

        List<Integer> memberCount = memberService.finMemberCountByMonth(list);
        map.put("memberCount",memberCount);

        return new Result(true, MessageConstant.GET_MEMBER_NUMBER_REPORT_SUCCESS,map);
    }


    /**
     * 套餐占比统计
     * @return
     */
    @RequestMapping("/getSetmealReport")
    public Result getSetmealReport(){
        List<Map<String,Object>> list = setmealService.findSetmealCount();

        Map<String,Object> map = new HashMap<>();
        map.put("setmealCount",list);

        List<String> list1 = new ArrayList<>();
        for (Map<String,Object> map1 : list){
            String name = (String) map1.get("name");
            list1.add(name);
        }
        map.put("setmealNames",list1);

        return new Result(true,MessageConstant.GET_SETMEAL_COUNT_REPORT_SUCCESS,map);
    }

    @RequestMapping("/getMemberGenderReport")
    public Result getMemberGenderReport(){
        List<Map<String,Object>> list = memberService.findMemberCountBySex();
        Map<String,Object> map = new HashMap<>();
        map.put("memberCount",list);
        List<String> list1 = new ArrayList<>();
        for (Map<String,Object> map11 : list){
            String name = (String) map11.get("name");
            list1.add(name);
        }
        map.put("genderNames",list1);
        return new Result(true,MessageConstant.GET_SETMEAL_COUNT_REPORT_SUCCESS,map);
    }

    @RequestMapping("/getMemberAgeReport")
    public Result getMemberAgeReport() throws Exception {

        List<Map<String,Object>> list = memberService.findMemberCountByAge();
        Map<String,Object> map = new HashMap<>();
        map.put("memberCount",list);
        List<String> list1 = new ArrayList<>();
        for (Map<String,Object> map11 : list){
            String name = (String) map11.get("name");
            list1.add(name);
        }
        map.put("ageNames",list1);
        return new Result(true,MessageConstant.GET_SETMEAL_COUNT_REPORT_SUCCESS,map);
    }

    /**
     * 获取运营统计数据
     * @return
     */
    @RequestMapping("/getBusinessReportData")
    public Result getBusinessReportData(){
        try {
            Map<String,Object> map = reportService.getBusinessReportData();
            return new Result(true,MessageConstant.GET_BUSINESS_REPORT_SUCCESS,map);
        }catch (Exception e){
            e.printStackTrace();
            return new Result(false,MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }
    }

    /**
     * 导出Excel报表
     * @return
     */
    @RequestMapping("/exportBusinessReport")
    public Result exportBusinessReport(HttpServletRequest request, HttpServletResponse response){
        try {
            // 远程调用报表服务获取报表数据
            Map<String,Object> result = reportService.getBusinessReportData();

            // 取出返回结果数据，准备将报表数据写入到Excel文件
            String reportDate = (String) result.get("reportDate");
            Integer todayNewMember = (Integer) result.get("todayNewMember");
            Integer totalMember = (Integer) result.get("totalMember");
            Integer thisWeekNewMember = (Integer) result.get("thisWeekNewMember");
            Integer thisMonthNewMember = (Integer) result.get("thisMonthNewMember");
            Integer todayOrderNumber = (Integer) result.get("todayOrderNumber");
            Integer thisWeekOrderNumber = (Integer) result.get("thisWeekOrderNumber");
            Integer thisMonthOrderNumber = (Integer) result.get("thisMonthOrderNumber");
            Integer todayVisitsNumber = (Integer) result.get("todayVisitsNumber");
            Integer thisWeekVisitsNumber = (Integer) result.get("thisWeekVisitsNumber");
            Integer thisMonthVisitsNumber = (Integer) result.get("thisMonthVisitsNumber");
            List<Map> hotSetmeal = (List<Map>) result.get("hotSetmeal");

            // 获得Excel模板文件的绝对路径
            String temlateRealPath = request.getSession().getServletContext().getRealPath("template")+ File.separator+"report_template.xlsx";

            // 读取模板文件创建Excel表格对象
            XSSFWorkbook workbook = new XSSFWorkbook(new FileInputStream(new File(temlateRealPath)));
            XSSFSheet sheet = workbook.getSheetAt(0);

            XSSFRow row = sheet.getRow(2);
            row.getCell(5).setCellValue(reportDate);//日期

            row = sheet.getRow(4);
            row.getCell(5).setCellValue(todayNewMember);//新增会员数（本日）
            row.getCell(7).setCellValue(totalMember);//总会员数

            row = sheet.getRow(5);
            row.getCell(5).setCellValue(thisWeekNewMember);//本周新增会员数
            row.getCell(7).setCellValue(thisMonthNewMember);//本月新增会员数

            row = sheet.getRow(7);
            row.getCell(5).setCellValue(todayOrderNumber);//今日预约数
            row.getCell(7).setCellValue(todayVisitsNumber);//今日到诊数

            row = sheet.getRow(8);
            row.getCell(5).setCellValue(thisWeekOrderNumber);//本周预约数
            row.getCell(7).setCellValue(thisWeekVisitsNumber);//本周到诊数

            row = sheet.getRow(9);
            row.getCell(5).setCellValue(thisMonthOrderNumber);//本月预约数
            row.getCell(7).setCellValue(thisMonthVisitsNumber);//本月到诊数

            int rowNum = 12;
            for(Map map : hotSetmeal){//热门套餐
                String name = (String) map.get("name");
                Long setmeal_count = (Long) map.get("setmeal_count");
                BigDecimal proportion = (BigDecimal) map.get("proportion");
                row = sheet.getRow(rowNum ++);
                row.getCell(4).setCellValue(name);//套餐名称
                row.getCell(5).setCellValue(setmeal_count);//预约数量
                row.getCell(6).setCellValue(proportion.doubleValue());//占比
            }

            // 通过输出流进行文件下载
            ServletOutputStream out = response.getOutputStream();
            response.setContentType("application/vnd.ms-excel");
            response.setHeader("content-Disposition", "attachment;filename=report.xlsx");
            workbook.write(out);

            out.flush();
            out.close();
            workbook.close();

            return null;
        }catch (Exception e){
            e.printStackTrace();
            return new Result(false,MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }
    }
}
